[soopy]

So isn't this, effectively, cold-press cannabis oil? Cold in the sense that the oil isn't degraded by the process....

This looks awesome!

Respect.

[Humpi]

Hi roji.

So did you put that nug in the hole and compress by hand to make a weed puck? Then took the puck to your press? Waiting for Monday to come along so I can pick up that t-shirt press

[SquattingBull]

The slab pictured is soilgrown, and the way he does it is by collecting a small amount on a tool and then rolling it over the paper to collect the rest. It creates a wheel of oil on the end of his tool and he then presses it out into those larger patties. Via his own words on one of his posts. Albeit I think it takes alot of time and effort to acquire that much rosin.



And to repose the same question while I am sure it is smooth, most people's accounts are positive, that doesn't answer the question about how much of this oil being produced is active ingredient and how much is the waxes that make up the trichome structure. We must assume that it adds some measurable amount to the yield just as we do with any "physical" extraction. I am not asking as a knock on the tech or the product, we don't knock dry sifts for the trichome weight, but I think it is a question worth answering.

[Roji]

Here is a shot of an analytic test done on Rosin

[Hashmasta-Kut]

Originally Posted by SquattingBull

And to repose the same question while I am sure it is smooth, most people's accounts are positive, that doesn't answer the question about how much of this oil being produced is active ingredient and how much is the waxes that make up the trichome structure. We must assume that it adds some measurable amount to the yield just as we do with any "physical" extraction. I am not asking as a knock on the tech or the product, we don't knock dry sifts for the trichome weight, but I think it is a question worth answering.

yes measurements are good and needed, but it is stronger, and yields less than bho, so that data can influence your opinion on the ratios ahead of testing. it would seem terpenes leach out well in the heat press as well as thc. i am not sure what it extracts so much less of. i did a butane extraction of 20 grams of heat pressed pucks and i didnt measure it, but can estimate it at less than gram but more than .5. it was quite dark, much darker than the heat press extract maybe as a result of the heat pressing, and definitely weaker.

[SquattingBull]

Wow that is impressive. Just to make sure I am looking at this correctly that leaves just under eight percent by weight that is not THC, CBD, or terpenes correct? Thanks for posting that Roji that certainly is enlightening. Begs the question how effective this tech would be on a CBD rich plant, and how much those numbers can fluctuate on from plant to plant.

[SquattingBull]

Originally Posted by Hashmasta-Kut

yes measurements are good and needed, but it is stronger, and yields less than bho, so that data can influence your opinion on the ratios ahead of testing. it would seem terpenes leach out well in the heat press as well as thc. i am not sure what it extracts so much less of. i did a butane extraction of 20 grams of heat pressed pucks and i didnt measure it, but can estimate it at less than gram but more than .5. it was quite dark, much darker than the heat press extract maybe as a result of the heat pressing, and definitely weaker.

I definitely think based on the data just posted terpenes seem to be extracted very effectively. I would say your lack of oil produced off pressed pucks is a good sign the press is an efficient extraction. Whether the darkness is from cellular damage, heat, or some other mechanism if thats all that is left it seems there can be no argument against the merit of the tek. I was going to ask if anyone has run an extraction on the pressed material but you beat me to it. Thanks for sharing.

[JointOperation]

how much rosin are you getting from that 20 grams.. and how much bho u get from the second extraction..

also.. on 20 grams of the same material whats your bho yield?

just trying to figure out what these yields are at .. 10%-15%?

[Sunfire]

Roji - I'm a shirt press noob. What the deal with the bit in the middle of the one you just linked?

Hashmasta - idk above the tube idea. You would need to get heat all the way through it, and then I feel like oil would gather on the sides of the tube? Maybe not a bad thing? line a 4x36 spool with 25 micron bag material, fill with your flowers, and heat the whole tube and press the shit out of it? Still I think the shirt press sounds faster and easier. My point is there's going to be a breaking point as to how thick you can do your presses for the material in the middle won't get enough heat.

Holy cow on the test results roji! All those terps and it's still shatter like? I've heard once you approach 10% terpenes with bho you will never have a stable product? This is getting fun! Keep working. I wasn't joking about grant money. Once you get this dialed down I'll come buy the first custom machine you make and drop you some extra for R&D. I want to to see yield and production of this technique rival cls!

[smurfin'herb]

@Joint- I did a 10 gram run yesterday, and got 1.54 grams of Rosin at a low temp, 8-10sec press. Thats over 15%.

I feel like the yields, and quality will go up, and the labor will go down once a machine is designed or discovered for this, and once methods are refined. Screens will be needed to keep hairs and other particulates out of the extract. With precision heat and pressure settings should ensure youre getting everything out. You could go one step further and winterize it if you wanted to. It would not surprise me if 20%+ yields are achieved in the near future.
Theres still a lot of refining to do with this method, but we are on the right track. Moisture content seems to be a biggie, because water seems to be a vessel for the resin to flow out. Im not sure if this is the proper term, but maybe steam distillation kind of going on?
Im starting to like the low temps and longer presses a lot versus say pressing for 2-5 seconds at 300-325f. Much better taste and color. If your getting reddish amber, or caramel color, your doing it wrong. Look for the golden color. It shouldnt have a heavy "vapey" smell or taste.